An elevation is different. It shows the face of something, or perhaps more correct, the projection of an object/s to a plane. But my testing suggests it produces SECTIONS, not elevations.
Yes, you can use abbreviations in tables and figures. All abbreviations used in tables and figures should be defined in the table note or figure caption, respectively, even though the abbreviations will be also be defined in the text if they are used there.
Temperature abbreviations are used in all types of writing. Other abbreviations of measurements are limited to lists, charts, technical writing, and informal writing. In standard formal English, they are spelled out.If you spell out the number, spell out the unit of measurement. There is no need to add an s to an abbreviation to show a plural.This is sometimes done in advertising (3 lbs. for a dollar), but it is not necessary. English Unit Abbreviations Abbreviation Unit of Measurement bbl. barrel cu.ther abbreviations of measurements are limited to lists, charts, technical writing, and informal writing. In standard formal English, they are spelled out. If you spell out the number, spell out the unit of measurement. There is no need to add an s to an abbreviation to show a plural.